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Finding the Fourth Proportional to 58,510.79, 87,780.03 and 19,067.91

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Solution

The fourth proportional to 58,510.79, 87,780.03 and 19,067.91 is: 28,606.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,510.79 : 87,780.03 = 19,067.91 : x
  2. Step 2: Convert to fraction form
    58,510.79/87,780.03 = 19,067.91/x
  3. Step 3: Cross multiply
    58,510.79x = 87,780.03 × 19,067.91
  4. Step 4: Simplify right side
    58,510.79x = 1,673,781,364.79
  5. Step 5: Solve for x
    x = 1,673,781,364.79/58,510.79
  6. Step 6: Final answer
    x = 28,606.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.